Waterproof coiled material

By introducing a structural design that includes a mesh reinforcement layer, a waterproof membrane, an adhesive layer, and a treatment layer into the waterproof membrane, the problems of easy cracking and high cost of existing waterproof membranes are solved, achieving a waterproof effect with high strength, low cost, and long service life.

CN224133954UActive Publication Date: 2026-04-17JIANGSU JIACHUANG NANOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIACHUANG NANOTECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing waterproof membranes have low tensile strength and elongation, and are prone to aging and cracking. Modified bitumen waterproof membranes have high requirements for production and laying and are costly, while polymer waterproof membranes have poor adhesion and large shrinkage and deformation.

Method used

The structure includes a core layer, a reinforcing layer, a waterproof membrane, an adhesive layer, and a treatment layer. The reinforcing layer is a mesh structure filled with polyester fiber yarn and bitumen. The waterproof membrane is a plastic membrane. The adhesive layer is composed of a mixture of isocyanate and polyol or SBS elastomer modified bitumen adhesive. The treatment layer is an anti-corrosion coating with raised features on the surface.

Benefits of technology

It improves the strength and durability of waterproof membranes, reduces the risk of cracking, simplifies manufacturing and installation conditions, reduces costs, and extends service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224133954U_ABST
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Abstract

The utility model provides a waterproof coiled material which comprises a coiled material body (1) and is characterized in that the coiled material body (1) comprises a core layer (11) and a reinforcing layer (12), the reinforcing layer (12) is located in the core layer (11), a waterproof film (13) is arranged at the bottom of the core layer (11), a bonding layer (14) is arranged at the bottom of the waterproof film (13), and a processing layer (15) is arranged at the top of the core layer (11); the reinforcing layer is arranged in the core layer, the strength of the core layer is further improved due to the arrangement of the reinforcing layer, the risk of embrittlement and fracture of the waterproof roll caused by long-time use of hands is reduced, and the service life of the waterproof roll is prolonged; the net-shaped reinforcing layer can share stress and reduce the cracking risk; the manufacturing and laying conditions are low, the cost is low, the service life is long, and deformation is not prone to occurring.
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Description

Technical Field

[0001] This utility model relates to the technical field of waterproof membranes, specifically to a waterproof membrane. Background Technology

[0002] Waterproof membranes, as a type of flexible building material that can be rolled up, are mainly used in building walls, roofs, tunnels, highways, landfills, etc., to resist external rainwater and groundwater seepage.

[0003] Existing waterproof membranes primarily use bitumen as the main material. However, bitumen waterproof membranes have low tensile strength and elongation, are prone to aging and cracking, and have a short service life when laid in complex environments. Although modified bitumen waterproof membranes and polymer waterproof membranes have emerged to improve these shortcomings, modified bitumen waterproof membranes have high requirements for manufacturing and laying, and are also costly; while polymer waterproof membranes have high manufacturing requirements, poor adhesion, and large shrinkage deformation.

[0004] Therefore, there is an urgent need to provide a new solution to address the defects and shortcomings of the existing technologies. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, this utility model proposes a waterproof membrane.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waterproof membrane includes a membrane body, characterized in that: the membrane body includes a core layer and a reinforcing layer, the reinforcing layer is located inside the core layer, a waterproof membrane is disposed at the bottom of the core layer, an adhesive layer is disposed at the bottom of the waterproof membrane, and a treatment layer is disposed at the top of the core layer.

[0008] As a further preferred embodiment of this utility model, the core layer is selected from layered asphalt structures.

[0009] As a further preferred embodiment of this utility model, the reinforcing layer is configured as a mesh structure.

[0010] As a further preferred embodiment of the present invention, the reinforcing layer includes warp and weft threads, which intersect perpendicularly to form a mesh structure.

[0011] As a further preferred embodiment of this utility model, a filling part is provided in the gap formed between the warp and weft threads, and the filling part is made of asphalt.

[0012] As a further preferred embodiment of the present invention, the waterproof membrane is adhered to the bottom of the core layer.

[0013] As a further preferred embodiment of the present invention, the adhesive layer is glued to the bottom of the waterproof membrane.

[0014] As a further preferred embodiment of this utility model, the treatment layer is selected from a layered anti-corrosion coating.

[0015] As a further preferred embodiment of the present invention, the surface of the processing layer is provided with a plurality of protrusions.

[0016] As a further preferred embodiment of the present invention, the protrusions are uniformly distributed on the surface of the treatment layer.

[0017] Compared with the prior art, the advantages and positive effects of this utility model include:

[0018] (1) This utility model provides a waterproof membrane. By setting the reinforcing layer inside the core layer, the strength of the core layer is further improved due to the setting of the reinforcing layer, reducing the risk of the waterproof membrane cracking and breaking after long-term use, and extending the service life of the waterproof membrane.

[0019] (2) This utility model provides a waterproof membrane. By setting the reinforcing layer as a mesh structure, the mesh reinforcing layer can share the stress and reduce the risk of cracking.

[0020] (3) This utility model provides a waterproof membrane with low manufacturing and laying conditions, low cost, long service life and not easy to deform. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a waterproof membrane is provided for this utility model;

[0022] Figure 2 This utility model Figure 1 Cross-sectional view at point AA;

[0023] Figure 3 This is a partial schematic diagram of the reinforcing layer in this utility model;

[0024] Figure 4 This utility model Figure 2 Diagram from direction B.

[0025] Legend: 1. Roll material body; 11. Core layer; 12. Reinforcing layer; 121. Warp; 121. Weft; 123. Filler; 13. Waterproof membrane; 14. Adhesive layer; 15. Surface layer; 16. Protrusion. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] [First Embodiment]

[0030] like Figure 1-4 The image shown is a waterproof membrane provided in the first embodiment of this utility model, such as... Figure 1-2 As shown, the membrane includes a roll body 1, which includes a core layer 11 and a reinforcing layer 12. The reinforcing layer 12 is located inside the core layer 11. In this embodiment, the core layer 11 is a layered structure formed by cooling hot melt asphalt. During molding, the reinforcing layer 12 can be used as a skeleton. Then, hot melt asphalt is poured onto the reinforcing layer 12, and the reinforcing layer 12 is submerged by the hot melt asphalt and finally cooled and formed. After molding, by setting the reinforcing layer inside the core layer, the strength of the core layer is further improved due to the setting of the reinforcing layer, reducing the risk of the waterproof membrane becoming brittle and breaking after long-term use, and extending the service life of the waterproof membrane.

[0031] In this embodiment, the reinforcing layer 12 is configured as a mesh structure. By configuring the reinforcing layer as a mesh structure, the mesh reinforcing layer can distribute stress and reduce the risk of cracking. Figure 3As shown, the reinforcing layer 12 includes warp threads 121 and weft threads 122. The warp threads 121 and weft threads 122 intersect perpendicularly to form a mesh structure. The warp threads 121 and weft threads 122 can be made of fine yarn twisted from polyester fibers. The polyester fiber yarn can improve the overall mechanical strength of the reinforcing layer 12. A filling part 123 is provided in the gap between the warp threads 121 and weft threads 122. The filling part 123 is made of asphalt. Preferably, it is the residual asphalt after the reinforcing layer 12 is soaked in molten asphalt during the weaving of the mesh structure. Soaking the reinforcing layer 12 in asphalt in advance allows the fiber gaps to be penetrated by asphalt in advance, so that asphalt can also be penetrated in the gaps between the warp and weft threads, which facilitates the adhesion between the reinforcing layer 12 and the hot-melt core layer 11 in the later stage.

[0032] like Figure 2 As shown, a waterproof membrane 13 is adhesively bonded to the bottom of the core layer 11. The waterproof membrane 13 can be made of plastic. By setting the waterproof membrane 13, the core layer 11 can maintain a certain degree of waterproofness even if it cracks and leaks water.

[0033] like Figure 2 As shown, an adhesive layer 14 is glued to the bottom of the waterproof membrane 13. The adhesive layer 14 is formed by uniformly applying glue to the bottom of the waterproof membrane 13. The glue film formed by the uniform distribution of glue is the adhesive layer. The glue is preferably a mixture of isocyanate and polyol, which has high tensile strength, weather resistance and adhesive performance. Alternatively, SBS elastomer modified bitumen glue, which is a composite of SBS elastomer and bitumen, can be used. It has advantages such as strong adhesion, elasticity and corrosion resistance. By setting the adhesive layer 14, a layer of bitumen can be sprayed on the area of ​​the roof where the waterproof membrane is to be laid, and then the entire waterproof membrane can be directly adhered to the area to be laid with the help of the adhesive layer 14, which facilitates installation.

[0034] like Figure 2 As shown, a treatment layer 15 is also provided on top of the core layer 11. The treatment layer 15 is made of a layered anti-corrosion coating. The anti-corrosion coating can be SBS modified bitumen (polypropylene-styrene-butadiene rubber-polypropylene), etc., to achieve the waterproof and anti-corrosion effect of the uppermost surface of the waterproof membrane.

[0035] like Figure 4 As shown, a number of protrusions 16 are provided on the surface of the treatment layer 15. The protrusions 16 are evenly distributed on the surface of the treatment layer 15. After the treatment layer 15 is coated, it is attached to the surface of the core layer 11 by means of a plate. Then the plate is removed to roughen the surface of the treatment layer 15 to form protrusions, thereby improving the anti-slip properties of the waterproof membrane surface.

[0036] The manufacturing process of the waterproof membrane provided by this utility model is as follows:

[0037] A mesh-structured reinforcing layer 12 is used as a skeleton, and then hot-melt asphalt is poured onto the reinforcing layer 12. The reinforcing layer 12 is submerged by the hot-melt asphalt and finally cooled and formed. After forming, because the mesh-structured reinforcing layer 12 is set inside, it is not easy to break when bent due to the support of the reinforcing layer 12. Secondly, during use, the mesh-structured reinforcing layer 12 can also play the role of sharing stress and reducing the risk of cracking.

[0038] The reinforcing layer 12 is formed by the perpendicular intersection of the warp 121 and the weft 122. By soaking the reinforcing layer 12 in asphalt in advance, the fiber gaps can be penetrated into the asphalt in advance, and the gaps between the warp 121 and the weft 122 can also be penetrated into the asphalt, which facilitates the adhesion between the reinforcing layer 12 and the hot-melt core layer 11 in the later stage.

[0039] A waterproof membrane 13 is adhesively attached to the bottom of the core layer 11. The waterproof membrane 13 can be made of plastic. By setting the waterproof membrane 13, the core layer 11 can maintain a certain degree of waterproofness even if it cracks and leaks water.

[0040] An adhesive layer 14 is glued to the bottom of the waterproof membrane 13. The adhesive layer 14 is formed by uniformly applying glue to the bottom of the waterproof membrane 13. The glue film formed by the uniform distribution of glue is the adhesive layer. By setting the adhesive layer 14, a layer of asphalt can be sprayed on the area of ​​the roof where the waterproof membrane is to be laid, and then the entire waterproof membrane can be directly adhered to the area to be laid with the help of the adhesive layer 14, which facilitates the installation.

[0041] A treatment layer 15 is also provided on top of the core layer 11. The treatment layer 15 uses a layered anti-corrosion coating to achieve the waterproof and anti-corrosion effect of the uppermost surface of the waterproof membrane.

[0042] The waterproof membrane provided by this utility model does not require a complicated manufacturing environment and laying conditions, is low in cost, has a long service life and is not easily deformed.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A waterproofing membrane comprising a membrane body (1), characterized in that: The roll body (1) includes a core layer (11) and a reinforcing layer (12). The reinforcing layer (12) is located inside the core layer (11). A waterproof membrane (13) is provided at the bottom of the core layer (11). An adhesive layer (14) is provided at the bottom of the waterproof membrane (13). A treatment layer (15) is provided at the top of the core layer (11).

2. The waterproof membrane according to claim 1, characterized in that: The core layer (11) is made of layered asphalt structure.

3. The waterproofing membrane of claim 1, wherein: The reinforcing layer (12) is configured as a mesh structure.

4. The waterproofing membrane of claim 3, wherein: The reinforcing layer (12) includes warp (121) and weft (122), which intersect perpendicularly to form a mesh structure.

5. The waterproofing membrane of claim 4, wherein: A filling part (123) is provided in the gap formed between the meridian (121) and the parallel (122), and the filling part (123) is made of asphalt.

6. The waterproofing membrane of claim 1, wherein: The waterproof membrane (13) is adhered to the bottom of the core layer (11).

7. The waterproofing membrane of claim 1, wherein: The adhesive layer (14) is bonded to the bottom of the waterproof membrane (13).

8. The waterproofing membrane of claim 1, wherein: The treatment layer (15) is a layered anti-corrosion coating.

9. The waterproofing membrane of claim 1, wherein: The surface of the processing layer (15) is provided with a plurality of protrusions (16).

10. The waterproofing membrane of claim 9, wherein: The protrusions (16) are evenly distributed on the surface of the treatment layer (15).